Undercoating composition



is the labor of app LOUIS CROSSMAN, or NEW'YORK, N. Y.

' UNDERCOATING COMPOSITION.

No Drawing.

To all whom it may concern Be it known that I, LoUI's CROSSMAN, a citizen of the United States, residing at New York in the county of New York and State of New York, have invented certain new and useful Improvements in Undercoating'Compositions, of which the following is a specification;

This invention relates to an under-coating composition for paint, enamel, and varnish, the object of the invention being to provide an improved under-coating'composition, the use of which will save the use of several coats of paint in ornamenting or protecting surfaces.

As is well known painted surfaces require usually a numberof coats of paint in order to thoroughly and efficiently cover the same,

and where these surfaces are particularly porous or green a comparatively large-number of coats of paint have to be usedbefore the final coat can be effectively applied, and the use of so many coats of paint is expensive not only because of the-time required to apply the numerous coats but also because of the cost of the materials which make up the paint. I have found however that by the use of the present composition, one coat thereof not only acts as a filler and covers the pores of the surface to be treated, but that this one coat gives -a glazed surface which does not soakinto the wood or other surface which it covers, andtakes the place of two or three more coats of paint, and as it is comparatively inexpensive to manufacture it follows that not only ying the extra coats of paint eliminated but also the cost of such coats of paint.

This improved composition comprises e'ssentially celluloid, acetone to dissolve it, alcohol, and preferably a small quantity of shellac. In practice I prefer also to use benzole as this thins down the acetone, and

as this is cheaper, less acetone has to .be-

prefer to usea small quantity as this offsets the odor of the. acetone, and I also prefer to use a small used. I also of acetic acid quantity of amyl-acetate which tends to prevent the composition after it is applied from turning white. Therefore in practice in its preferred form this under-coating composition, approximatel per gallon thereof comprises substantial v about gallon of acetone, gallon wood alcohol, gallon benzole, 2 oz. of celluloid, 1 oz.

Specification of Letters Patent.

' of shellac, oz.

.tone, the shellac Patented Aug. 15, 1922.

Application filed February a, 1922. Serial No. 535,065.

of acetic acid, and oz. The acetone, with the aswood alcohol dissolves the benzole thins down the aceserving to somewhat harden of amyl-acetate. sistance of the celluloid. The

the composition.

The cost per gallon is about $1.05 at the present time while the cost of paint varies according to the quality thereof from approximately $3.00 up, and since one coat of this composition applied to a surface will act to permit the final coat'of paint to be applied, it will be immediately apparent that there will not only be a great saving in the cost of thetime and labor of applying several coats of paint, but also in the cost of the paint required to do the work.

I have found in practice also that this composition may be effectively used to cover wall paper, and thereby enable it to be readily washed.

As a practical painter and decorator I have been using this material for some time past with very great success with the result that I am ,able to do and efficient and satisfactory decorating job in a day or two which would ordinarily take a week, since-the under-coating quickly dries thus enabling the last coat to be very promptly applied.

I have also found that wood covered and protected by this under-coating and then painted or enamelled, can be struck with a hammer without the enamel cracking or chipping off, which is'not possible with wood covered with a primary and several other coats. of paint. Scraps of celluloid or old films may be used effectively.

Thus by the use of a single coating of this composition, the necessity of a primary coat and several intermediate coats of paint before the application of the final coat is entirely eliminated.

If desired the under-coating may be colored by the use of any suitable coloring material or pigment. It will be understood that .I do not limit myself tothe exact proporand shellac; V

shellac, and amyl-acetate.

4. An under-coating composition for surfaces comprising alcohol, acetone, celluloid,

5 An under-coatin composition for'surfaces comprising alco liol, acetone, celluloid, shellac, amyl-acetate, and acetic acid.

6. An under-coating compositionIfor-sun faces comprising acetone, wood alcohol, benzole, and celluloid,

7. An under-coating composition for surfaces comp-rising acetone, wood alcohol, benzole, celluloid, and shellac.

- [8. An under-coating composition for surfaces comprising acetone, wood alcohol,

benzole, celluloid, shellac, and amyl-acetate.

9. An under-coating composition for surfaces comprising approximately for. each' gallon, gallon acetone, gallon wood alcohol, gallon benzole, 2 ounces celluloid,

. 1 ounce shellac, and g ounce amyl-acetate.

12. An under-coating composition for surfaces comprising approximately for each gallon, gallon acetone, T56- gallon wood alcohol, gallon benzole, 2 ounces celluloid, 1 ounce shellac, ounce amyl-acetate, and ounce acetic acid. 1

. Signed at 1822 Park Row Building, New York, N. Y., this 7th day of February, 1922.

j LOUIS CROS'SMAN. 

